ASTROSAT CZTI

Data Quality Report

Orbit 41222

Creation date: 2024-06-27T22:26:07.516333
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C07_001T12_9000005632_41222cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41222cztM0_level2_quad_clean.evt
Size (bytes)948,061,440246,110,400
Size904.1 MB 234.7 MB
Events in quadrant A8,701,7801,635,684
Events in quadrant B8,672,3091,640,916
Events in quadrant C7,379,3261,615,713
Events in quadrant D9,131,5281,482,697

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0359575
B0374924
C0326334
D0386704

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0490
B0490
C0490
D0500

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03180
C03180
D03180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156031811.160033%
B156035233.351920%
C156031601.025444%
D156034182.678972%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 19781 15606 137 137 0.69% 0.88%
B 19781 15605 402 402 2.03% 2.58%
C 19781 15606 148 148 0.75% 0.95%
D 19781 15606 416 416 2.10% 2.67%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 1336243 4042.97 1626 1588 330.1
A 0 8 825140 2494.73 1626 1588 330.1
A 2 79 174792 524.67 1626 1588 330.1
B 0 186 1147260 3731.09 1604 1559 307.1
B 0 229 801472 2605.0 1604 1559 307.1
B 5 255 152744 492.35 1604 1559 307.1
C 15 214 651724 1768.05 1593 1604 367.7
C 0 10 453516 1229.01 1593 1604 367.7
C 9 54 42295 110.66 1593 1604 367.7
D 13 249 1037553 2706.64 1583 1537 382.8
D 2 120 840345 2191.43 1583 1537 382.8
D 2 249 276879 719.34 1583 1537 382.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter